Before I started getting involved in replicas I knew of only one luxury watch brand - Rolex, of course. Actually I couldn't tell apart one type from another, I just knew Rolex = most expensive watch in the world.
Then, through a very slow but rewarding journey, I discovered the true brands of horological mastery.
You have to understand that most "common people" are just like I used to be - absolutely clueless. This is why sometimes I laugh when somebody pays $500 to put a genuine crown in their $200 rep. The chances you run into someone who would be interested enough in your watch to go to such extremes in getting a close up look and being able to verify its authenticity with a 2-3 second sweep of the eyes is simply preposterous. If, indeed, you want to make your watch look believable, I think good posture, clean well-fitting clothing (not necessarily a suit either), dominant voice all go a long way!